add supervisor support and script, easy to use.

just like ./gogs_supervisord.sh start
./gogs_supervisord.sh stop
./gogs_supervisord.sh restart
and logs all saved tmp folder
Merge pull request #175 from jacksonpan/master

add supervisor support and script, easy to use.
modify the file path

move etc/supervisord.conf to conf/etc/supervisord;
remove tmp folder, then all logs move to log folder;
move the supervisor.pid to /tmp folder.
add tip to modify the command path, add check the log folder, if not then create it.
Merge pull request #177 from jacksonpan/master

modify the file path
Fix issue link in issues page

The link assumes that the issue belongs to the signed in
user, which is not necessarily the case
I changed it to use repository owner name instead
Merge pull request #184 from mlitbk/issue-link

Fix issue link in issues page
Fix #183
Finish milestone
Litte bug fix
Fix #185
Litte bug fix
add milestone issue view ui
Merge remote-tracking branch 'origin/dev' into dev
add milestone in new-issue page
Finish change issue’s milestone
Merge branch 'dev' of github.com:gogits/gogs into dev
Finish change issue’s milestone
Fix #185
Merge branch 'master' of github.com:gogits/gogs into dev